CPSC-accepted lab vs. any accredited lab — what's the difference?

Federal law requires that every children's product be tested by a third-party, CPSC-accepted laboratory for the children's safety rules that apply to it. A Children's Product Certificate has to name that lab, and the certificate rests on the lab's results. If the testing behind a CPC came from a lab CPSC has not accepted, the certificate is deficient — no matter how real or competent the testing was. This is one of the quieter reasons a CPC that looks finished still gets rejected.

A laboratory can hold a general accreditation — the kind an ISO/IEC 17025 assessment gives — and still not be CPSC-accepted. Acceptance is a separate status: CPSC has to have accepted that specific lab into its program for children's product testing. CPSC has accepted more than 600 laboratories worldwide, and a lab outside that set does not meet the requirement even when it is fully accredited for other work. General accreditation is a prerequisite; CPSC acceptance is the status the rule actually asks for.

CPSC does not accept a lab for everything at once. Because acceptance is rule-specific, a lab may be accepted to test against some CFR safety rules and not others — so a single product can need more than one lab to cover all the tests that apply to it. A report from a CPSC-accepted lab that was not accepted for the specific rule a product is certified to is the same gap in a different place: the certificate would rest on testing the lab was not accepted to perform.

They all point at the same status, and only one of the phrases is the official one. The Consumer Product Safety Improvement Act (CPSIA) is the law that created the third-party testing requirement, and CPSC is the agency that runs it, so a "CPSIA lab" and a "CPSC lab" mean the same program. CPSC's own term is a CPSC-accepted laboratory: a lab that is accredited to ISO/IEC 17025 and that CPSC has then accepted for specific children's product safety rules. "Accredited" describes the first step; "accepted" is the status the rule asks for; "approved" is not a term CPSC uses.

Whichever phrase a lab uses to describe itself, the check is the same: the lab's name, matched on CPSC's laboratory search against the specific rule the product is certified to.

CPSC publishes a searchable list of accepted laboratories, so a lab's status is verifiable rather than assumed. The certificate should name the lab, and that name can be matched against the list for the specific rule the product is certified to. A CPC that is silent on the lab, or that names a lab absent from the list for that rule, is the kind of certificate that looks complete until the lab is checked.

No. The CPSC-accepted-lab requirement is specific to children's products and the Children's Product Certificate. A general-use product carries a General Certificate of Conformity, which can rest on testing or a reasonable testing program without a CPSC-accepted third-party lab. So the lab question only bites when the product is a children's product — which is itself a determination, not a label, and the first thing to settle.